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罕遇地震作用下剪力墙构件易进入塑性阶段而发生弹塑性损伤,准确地模拟剪力墙构件进入非线性状态后的力学行为对评价剪力墙结构的抗震安全性及基于性能的抗震设计具有重要的意义。通过面向对象语言编制了基于宏观单元的结构弹塑性分析软件平台MESAP及多竖向弹簧剪力墙单元(MVLEM),采用材料本构及Fischinger学者提出的轴向弹簧本构对按我国规范设计的剪力墙低周往复荷载试验进行分析,其滞回曲线吻合程度较高,表明该单元能够反映剪力墙构件的强非线性行为,且精度较高。
Under the rare earthquake, the shear wall component is easy to enter the plastic stage and undergoes elastoplastic damage, and accurately simulates the mechanical behavior of the shear wall component after it enters the nonlinear state. It is very important to evaluate the seismic safety of the shear wall structure and the performance-based seismic design It is of great significance. The MESAP and multi-vertical spring shear wall unit (MVLEM) based on macrocell-based structural elastic-plastic analysis software were compiled by using object-oriented language. By using the material constitutive theory and the axial spring constitutive theory proposed by Fischinger scholars, Shear wall low cyclic load test analysis, the hysteresis curve of a high degree of agreement, indicating that the unit can reflect the strong non-linear behavior of the shear wall components, and higher accuracy.